What are the equilibrium concentrations? Equation sheetincluded. 2. (10 pts) For the reaction (aq) the equilibrium...
Question 10 1 pts For the reaction Cu2S(s) =2Cu* (aq) +52-(aq), the equilibrium concentrations are as follows: (Cut) = 1.0~10-5 M, [52-)- 10 x 10-2 M. The equilibrium constant is: 1.0 x 107 1.0 x 10-12 O 1.0x 10 % 1.0 x 107.
Calculating equilibrium concentrations when the net reaction proceeds forward Consider mixture B, which will cause the net reaction to proceed forward. net → [X] + 0:00 Concentration (M) (XY) initial: 0.500 change: equilibrium: 0.500 - 2 [Y] 0.100 + 0.100 + +x 0.100+ The change in concentration, 2, is negative for the reactants because they are consumed and positive for the products because they are produced, Part B Review | Constants Periodic Tabl Based on a Kc value of 0.250...
Now, for a complete equilibrium problem Consider the following general reaction: HC2H3O2 (aq) + H2O (l) ⇌ H3O+ (aq) + C2H3O2–(aq) Kc = 1.8 x 10–5 (at 25 ºC) If a solution initially contains (7.9x10^-1) M of HC2H3O2, (and no H3O+ or C2H3O2– ), what is the equilibrium concentration of H3O+ (aq) in the mixture? In the appropriate blanks, provide the equilibrium [H3O+ (aq)], in the solution, in M, to two significant figures and to the appropriate power
Consider the reaction: Mg(OH)2 (s) = Mg(aq) + 2 OH- (aq) At equilibrium, a 1.0 L reaction vessel contains 5.3 moles of Mg(OH)2 and concentrations of 0.0080 M and 0.010 M of Mg and OH respectively. What is Kc for this equilibrium? Consider the reaction: N2 (g) + 3 Br(g) = 2 NBr) (g) At equilibrium, the concentrations of Nz and Bra are 0.34 M and 0.70 M respectively, and the concentration of NBrs is 0.090 M. What is Kc...
14. What are the final concentrations of A and A, at equilibrium if the initial (A) concentration is 0.60M? K-4.2 x 10* As (g) 2A(8) Initial: 0.60 Equilibrium: 15. Find final equilibrium concentrations for HA, H', and A: HA(aq) + H20 (1) HO" (aq) + A' (aq) Initial Concentrations 0.60 M OM ом K.-2.0 x 10 **Remember to review Properties of liquids (solubility, intermolecular forces, colligative properties, concentration units), phase diagrams, phase changes and the energy associated with heating and...
Consider the balanced chemical equation for this equilibrium reaction: A (aq) + B (aq) = AB (aq) To determine the equilibrium constant for this reaction at 298 K, a student mixes two solutions together and allows them to react: • 10.0 mL of 0.60 M A (aq), and, • 40.0 mL of 0.25 MB (aq). When this solution reaches equilibrium, the student measures the equilibrium concentration of AB in the 50.0 mL solution: [AB]E = 0.10 M. Which values should...
What is the final concentration of D at equilibrium if the initial concentrations are [A] = 1.00 M and [B] = 2.00 M ?The reversible chemical reaction A+B⇌C+D has the following equilibrium constant: Kc=[C][D][A][B]=5.3 Gaseous hydrogen iodide is placed in a closed container at 425∘C, where it partially decomposes to hydrogen and iodine: 2HI(g)⇌H2(g)+I2(g) At equilibrium it is found that [HI]= 3.55×10−3M, [H2]= 4.82×10−4M , and [I2]= 4.82×10−4M. What is the value of Kc at this temperature? b The reversible...
Equilibrium and ICE Table 1) The equilibrium constant (KC) at 1280 °C for the following reaction is 1.1 x 10-3. What are the equilibrium concentrations for Br2(g) and Br(g) if the initial concentration of Br2 is 0.125 M? Br2(g) ⇌ 2 Br(g) 2) Consider the reaction for the decomposition of H2S at 800 °C where the KC is 1.67 x 10-7. In a 0.5 L reaction vessel the initial concentration of H2S is 0.0125 mol at 800 °C. What are...
For the reaction NH3(aq) + H+ (aq) ⇋ NH4 + (aq), at 20°C the equilibrium concentrations were as follows: [NH3] = 2 x 10-4 M; [H+ ] = 2 x 10-4 M; and [NH4 + ] = 18 M. Calculate the equilibrium constant for the reaction.
Consider the following reaction: HC2H3O2(aq)+H2O(l)⇌H3O+(aq)+C2H3O−2(aq) Kc=1.8×10−5 at 25∘C If a solution initially contains 0.180 M HC2H3O2, what is the equilibrium concentration of H3O+ at 25∘C? Express your answer using two significant figures.